using System;
using UnityEngine;

public class PlayerController : MonoBehaviour
{
    public Rigidbody rb;
    public float walkSpeed = 5f;
    public float runSpeed = 10f;
    public float rotateSpeed = 100f;
    public float jumpForce = 50f;

    public float stamina = 100f;
    public float drainRate = 20f;
    public bool bIsSprinting;
    public bool bCanSprint;

    public int health;
    public bool bHasBeenDamaged;

    private float currentSpeed;
    private bool bIsGrounded;
    private Vector2 input;

    void Update()
    {
        input.x = Input.GetAxis("Horizontal");
        input.y = Input.GetAxis("Vertical");

        bIsSprinting = Input.GetKey(KeyCode.LeftShift) && input.y > 0 && bCanSprint;
        currentSpeed = bIsSprinting ? runSpeed : walkSpeed;

        if (bIsSprinting)
        {
            stamina -= drainRate * Time.deltaTime;
        }

        stamina = Mathf.Clamp(stamina, 0, 100f);

        if (Input.GetButtonDown("Jump") && bIsGrounded)
        {
            Jump();
        }

        /*if (Input.GetKeyDown(KeyCode.F5))
          {
            GameManager.gameManagerInstance.SaveData();
          }*/
    }

    private void FixedUpdate()
    {
        Vector3 moveDirection = transform.forward * input.y * currentSpeed;
        rb.linearVelocity = new Vector3(moveDirection.x, rb.linearVelocity.y, moveDirection.z);

        float rotation = input.x * rotateSpeed * Time.fixedDeltaTime;
        transform.Rotate(0, rotation, 0);
    }

    private void Jump()
    {
        rb.AddForce(Vector3.up * jumpForce, ForceMode.Impulse);
        bIsGrounded = false;
    }

    public void ReduceHealth()
    {
        bHasBeenDamaged = true;
        health--;
        if(health <= 0)
        {
            Debug.Log("Player is dead");
            bHasBeenDamaged = false;
        }

        bHasBeenDamaged = false;
    }

    private void OnCollisionStay(Collision collision)
    {
        foreach (ContactPoint contact in collision.contacts)
        {
            if (contact.normal.y > 0.7f)
            {
                bIsGrounded = true;
                break;
            }
        }
    }

    private void OnCollisionExit(Collision collision)
    {
        bIsGrounded = false;
    }


}